Helmet



FIG. 1 is a top, front and left side perspective view of a helmet with the visor raised, showing my new design;

FIG. 2 is a top, front and right side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top, front and left side perspective view thereof, with the visor lowered;

FIG. 6 is a top, front and right side perspective view thereof, with the visor lowered; and

FIG. 7 is a front elevational view thereof with the visor lowered. 

The ornamental design for a helmet, as shown and described. 